For so many, the horror genre is something that's always there for them. Whether it's a poignant, thoughtful horror offering, a mindless, cathartic slasher consisting of a ludicrous body count, an elaborate creature feature, a reinvention of an old favourite, or whatever.
The point is, people forever gravitate towards horror and its many wonderful subgenres.
What horror hounds or more casual moviegoers are maybe not so familiar with, though, are some of the real life issues behind the films that are viewed on the cinema screen and in the comfort of your own home.
Some of the greatest horror pictures in history have a rather murky reality behind them, and some of those realities are absolutely heartbreaking. From countless tales of vile abuse, to traumatic exhaustion, to classless moves, to subjects so grim that they're truly hard to type, the sad reality is that many of your favourite horror films may well have a horrible truth or two behind them.
Here, then, we're looking at the absolutely shocking truths that will mean you'll genuinely struggle to be able to watch certain horror films ever again.
8. The Birds
Alfred Hitchcock is undoubtedly one of the greatest directors in the history of cinema, period. But for all of the masterpieces he brought to the table across his legendary career, that doesn't mean that Hitchcock was always the nicest of people.
On The Birds, Hitchcock made the film a living hell for lead actress Tippi Hedren.
As Hedren has revealed in the years since Hitchcock's death in 1980, the filmmaker made persistent, unwanted sexual advances on the actress throughout production of The Birds. When Hedren rejected these advances, Hitchcock threatened to ruin her career.
Showcasing even more of a vindictive streak, Hitchcock made the rest of the shoot a misery for Tippi. According to the actress, one such act of spite saw Hitchcock change The Birds' final act without informing Hedren. Under the impression that said finale would feature a slew of mechanical birds on a rampage, the last-minute call was made to replace the faux birds with real ones - much to Hedren's shock and terror.
Tippi Hedren's The Birds co-star Rod Taylor is just one of several people to back up Hedren's claims, and the relationship between Hitchcock and Hedren was even spotlighted in HBO's The Girl.